"These would exclude IS and the al-Qaida affiliated al-Nusra Front. However, they could draw in groups such as al-Nusra's powerful Islamist ally Ahrar al-Sham."
.....Yes, the leader of the Islamic Front alliance Zahran alloush called for the extermination of all Shiites and Alewites in the Levant. Now, these what the west called "Moderate". Read what other things he has planned.

From the same source...Here is the leader of the MODERATE Ahrar Al Sham: "Ahrar ash-Sham leader Hassan Aboud stated that Ahrar ash-Sham worked with Nusra Front and would have no problems with Nusra as long as they continued fighting Assad, Aboud also said Ahrar worked with Islamic State of Iraq and the Levant in some battles but that their agenda was disagreeable. Aboud also said all parties shared the same objective of establishing an Islamic State, whether they were ISIS, Al Nusra, the Islamic Front, or the FSA but they differed as to the "tactics, strategies or methods".[101][102][103][104] Aboud noted that in Syria "there are no secular groups".[105]"